* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
    padding-top: 80px;
}


[v-cloak] {
    display: none;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 120px 2rem 60px;
    text-align: center;
    color: white;
}

.hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #000;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #000;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover {
    color: #007bff;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown .dropdown-trigger i {
    font-size: 0.7rem;
    margin-left: 4px;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .dropdown-trigger i {
    transform: rotate(180deg);
}

.nav-dropdown .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 8px 0;
    margin-top: 10px;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown .dropdown-item {
    display: block;
    padding: 10px 20px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-dropdown .dropdown-item:hover {
    background: #f5f5f5;
    color: #007bff;
}

/* ✨NEW: Support Hero Section (replacing hero-section) */
.support-hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 60px 20px;
    text-align: center;
}

.support-content {
    max-width: 800px;
    margin: 0 auto;
}

/* ✨ NEW: Support intro text styles */
.support-intro {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.6;
}

.support-intro-secondary {
    font-size: 1.1rem;
    color: #333;
    margin: 40px 0 20px;
    line-height: 1.6;
}

/* ✨ NEW: Extension button style */
.extension-button {
    background: #007bff;
    color: white;
    border: none;
    padding: 16px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
    margin: 10px;
}

.extension-button:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

/* ✨ NEW: After-sales button style */
.aftersales-button {
    background: #6c757d;
    color: white;
    border: none;
    padding: 16px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.3);
    margin: 10px;
}

.aftersales-button:hover {
    background: #545b62;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.4);
}

/* ✨ NEW: Tab Buttons */
.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.tab-btn {
    background: white;
    color: #666;
    border: 2px solid #ddd;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-btn i {
    font-size: 1.1rem;
}

.tab-btn:hover {
    background: #007bff;
    border-color: #007bff;
    color: white;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

/* Main Content */
.main-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

/* Section Cards */
.section-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    /* ✨ NEW: Scroll margin for smooth scrolling */
    scroll-margin-top: 100px;
}

.section-title {
    font-size: 1.4rem;
    color: #333;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title i {
    color: #20b2aa;
    font-size: 1.2rem;
}

.section-desc {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* Buttons - Keep original styles for compatibility */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: #2196F3;
    color: white;
}

.btn-primary:hover {
    background: #1976D2;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(33, 150, 243, 0.3);
}

.btn-secondary {
    background: white;
    color: #333;
    border: 2px solid #333;
}

.btn-secondary:hover {
    background: #333;
    color: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-box {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
}

.contact-box h4 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.contact-box p {
    color: #666;
    margin: 0.5rem 0;
}

.contact-box a {
    color: #20b2aa;
    text-decoration: none;
}

.contact-box a:hover {
    text-decoration: underline;
}

.contact-box ul {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
}

.contact-box ul li {
    color: #666;
    padding: 0.3rem 0;
    padding-left: 1rem;
    position: relative;
}

.contact-box ul li::before {
    content: "•";
    color: #20b2aa;
    position: absolute;
    left: 0;
}

/* FAQ Section */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    font-weight: 500;
    color: #333;
    transition: background 0.2s ease;
}

.faq-question:hover {
    background: #eee;
}

.faq-question i {
    color: #20b2aa;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: #666;
    line-height: 1.8;
    display: none;
    white-space: pre-line;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Still Have Problem */
.problem-section {
    background: linear-gradient(135deg, #20b2aa 0%, #3cb371 100%);
    color: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    scroll-margin-top: 100px;
}

.problem-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.problem-section p {
    opacity: 0.95;
    margin-bottom: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.email-cards {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.email-card {
    background: rgba(255, 255, 255, 0.15);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.email-card span {
    font-weight: 600;
    display: block;
    margin-bottom: 0.3rem;
}

.email-card a {
    color: white;
    text-decoration: underline;
}

/* Footer */
.footer {
    background: #1a1a2e;
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

.footer p {
    opacity: 0.7;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1rem;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    border-radius: 20px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
    padding: 2.5rem;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 35px;
    height: 35px;
    border: none;
    background: #f0f0f0;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 10;
}

.modal-close:hover {
    background: #e0e0e0;
    transform: rotate(90deg);
}

.modal-close i {
    color: #666;
}

.modal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.modal-title {
    font-size: 1.5rem;
    color: #333;
    font-weight: 700;
}

.modal-form .form-group {
    margin-bottom: 1.5rem;
}

.modal-form .form-label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.modal-form .required {
    color: #e74c3c;
}

.name-row {
    display: flex;
    gap: 15px;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fafafa;
    font-family: inherit;
}

.form-input.half {
    flex: 1;
}

.form-input:focus {
    outline: none;
    border-color: #20b2aa;
    background: white;
    box-shadow: 0 0 0 3px rgba(32, 178, 170, 0.1);
}

.form-textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    min-height: 120px;
    transition: all 0.3s ease;
    background: #fafafa;
}

.form-textarea:focus {
    outline: none;
    border-color: #20b2aa;
    background: white;
    box-shadow: 0 0 0 3px rgba(32, 178, 170, 0.1);
}

.form-note {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
    margin: 1rem 0;
    text-align: center;
}

select.form-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

.submit-button {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #20b2aa 0%, #3cb371 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(32, 178, 170, 0.3);
}

.submit-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #20b2aa 0%, #3cb371 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(32, 178, 170, 0.3);
}

@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }

    .hero-section {
        padding: 100px 1rem 40px;
    }
    
    .hero-section h1 {
        font-size: 1.8rem;
    }
    
    .support-hero {
        padding: 40px 15px;
    }
    
    .support-intro,
    .support-intro-secondary {
        font-size: 1rem;
    }
    
    .extension-button,
    .aftersales-button {
        width: 100%;
        max-width: 350px;
        padding: 14px 30px;
        font-size: 1rem;
    }
    
    .tab-buttons {
        gap: 10px;
        margin-top: 40px;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
    
    .main-content {
        padding: 2rem 1rem;
    }
    
    .section-card {
        padding: 1.5rem;
    }
    
    .email-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .modal-content {
        padding: 2rem 1.5rem;
    }
    
    .name-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-input.half {
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    .tab-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
        justify-content: center;
    }
}